606361381 has 2 divisors, whose sum is σ = 606361382. Its totient is φ = 606361380.

The previous prime is 606361339. The next prime is 606361501. The reversal of 606361381 is 183163606.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 603488356 + 2873025 = 24566^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 606361381 - 2⁹ = 606360869 is a prime.

It is a super-2 number, since 2×606361381² = 735348248736454322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606361081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303180690 + 303180691.

It is an arithmetic number, because the mean of its divisors is an integer number (303180691).

Almost surely, 2^606361381 is an apocalyptic number.

It is an amenable number.

606361381 is a deficient number, since it is larger than the sum of its proper divisors (1).

606361381 is an equidigital number, since it uses as much as digits as its factorization.

606361381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 606361381 is about 24624.4062060388. The cubic root of 606361381 is about 846.4029684051.

The spelling of 606361381 in words is "six hundred six million, three hundred sixty-one thousand, three hundred eighty-one".